Home / 1,188,946.05-1,783,044.42-390,041.43

Finding the Fourth Proportional to 1,188,946.05, 1,783,044.42 and 390,041.43

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Solution

The fourth proportional to 1,188,946.05, 1,783,044.42 and 390,041.43 is: 584,939.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,946.05 : 1,783,044.42 = 390,041.43 : x
  2. Step 2: Convert to fraction form
    1,188,946.05/1,783,044.42 = 390,041.43/x
  3. Step 3: Cross multiply
    1,188,946.05x = 1,783,044.42 × 390,041.43
  4. Step 4: Simplify right side
    1,188,946.05x = 695,461,195,330.32
  5. Step 5: Solve for x
    x = 695,461,195,330.32/1,188,946.05
  6. Step 6: Final answer
    x = 584,939.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.